124661637212 has 24 divisors (see below), whose sum is σ = 250576166400. Its totient is φ = 53157939120.

The previous prime is 124661637203. The next prime is 124661637223. The reversal of 124661637212 is 212736166421.

It is a self number, because there is not a number n which added to its sum of digits gives 124661637212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11180864 + ... + 11192007.

It is an arithmetic number, because the mean of its divisors is an integer number (10440673600).

Almost surely, 2^124661637212 is an apocalyptic number.

It is an amenable number.

124661637212 is an abundant number, since it is smaller than the sum of its proper divisors (125914529188).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

124661637212 is a wasteful number, since it uses less digits than its factorization.

124661637212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22373081 (or 22373079 counting only the distinct ones).

The product of its digits is 145152, while the sum is 41.

The spelling of 124661637212 in words is "one hundred twenty-four billion, six hundred sixty-one million, six hundred thirty-seven thousand, two hundred twelve".